SKF TMSP 1 Instrucciones De Uso página 9

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Note: I f sound level range or A-C weighting is changed, the
MAX/MIN mode will clear.
• Level range control switch (5)
Each time the UP button is pressed. The level range increments
from "Lo" Level to "Hi" Level range and to "Auto" Level range.
Each time the DOWN button is pressed. The range decreases from
"Auto" Level range to "Hi" Level and to "Lo" Level range.
• Frequency Weighting select button (6)
A : A - Weighting; for general sound level measurements.
C : C - Weighting; for checking the low-frequency content of noise.
(If the C-Weighted level is much higher than the A-weighted level,
then there is a large amount of low-frequency noise)
• Time weighting select button (7)
FAST : for normal measurements
SLOW : for checking average level of fluctuating noise.
• Microphone (8)
/ inch Electret Condenser microphone.
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2
• CAL potentiometer (9)
Calibration control. For level calibration
adjustment.
The RS-232 signal output is a 9 600 bps
N 8 1 serial interface. (10).
• Signal output terminal (11)
AC: 1 Vrms Corresponding to each range step. Output impedance
approx. 100Ω. Output signal by standard 3,5 mm coaxial socket
signal on pin.
Note: A t "Auto" level range, output signal is Auto select on "Lo"
or "Med" or "Hi" level range.
DC: O utput : 10mV/dB.
Output impedance approx. 1KΩ
Output signal by standard 3,5 mm
coaxial socket signal on middle.
• External DC 9V power supply terminal (12)
For connection with AC adapter.
SKF TMSP 1
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DC Signal
Ground
AC Signal
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